package com.luke.order.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configurers.ResourceServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.token.RemoteTokenServices;
import org.springframework.security.oauth2.provider.token.ResourceServerTokenServices;
import org.springframework.security.oauth2.provider.token.TokenStore;

/**
 * 资源服务配置
 */
@Configuration
@EnableResourceServer
@EnableGlobalMethodSecurity(prePostEnabled = true)//开启权限注解，使用@PreAuthorize控制权限访问
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {

    /**代表了当前服务的ID，客户端必须拥有该资源才能访问该服务*/
    public static final String RESOURCE_ID = "res1";

    /**使用JWTToken*/
    @Autowired
    private TokenStore tokenStore;

    @Override
    public void configure(ResourceServerSecurityConfigurer resources) {
        resources.resourceId(RESOURCE_ID) //资源ID
                //.tokenServices(tokenService())//验证令牌
                .tokenStore(tokenStore)
                .stateless(true);//无状态，基于令牌（即不再使用Session）
    }

    @Override
    public void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers("/**").access("#oauth2.hasScope('ROLE_ADMIN')")
                .and().csrf().disable()
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS);//不再使用Session
    }

   /* //资源服务令牌解析服务（验证令牌）
    @Bean
    public ResourceServerTokenServices tokenService() {
        //使用远程服务请求授权服务器校验token,必须指定校验token 的url、client_id，client_secret
        RemoteTokenServices service = new RemoteTokenServices();
        service.setCheckTokenEndpointUrl("http://localhost:53020/auth-server/oauth/check_token");
        service.setClientId("c1");
        service.setClientSecret("secret");//TODO 资源服务是怎么知道客户端的ID和密钥的呢？
        return service;
    }*/

}
